The propular fitness app/zombie apocalypse surviving simulator Zombies, Run! (Free) is starting Season 5, and it promises some big expansions of the concept. But for users of the current app, they’ll be glad to know that 40 new missions have been added to the game, along with a whole bunch of little tweaks and improvements to make the whole thing better. The business model isn’t changing from the free-to-play model introduced in season 4. $2.99 per month or $19.99 per year will get you unlimited access to all game modes and features, with free players getting the first few story missions and one free mission per week.

Expect more events surrounding the game – the Virtual Race series is growing in popularity, and there’s more where that came from. Since Zombies, Run is a story-driven experience, there’s opportunity for the game to grow its narrative, and it’ll do so through a tie-in book published by Penguin. A digitally-enhanced board game is on the way, and something secret “airing in early summer" is on the way too. Kinda crazy that what was once a curious crowdfunded fitness app has come all this way, and that it’s going into its fifth year of existence, to boot.